Set "en_US.UTF-8" locale for user env
You need set this lines to .profile file of your account:
export LANG="en_US.UTF-8"
export LC_ALL="en_US.UTF-8"
$ locale
LANG=en_US.UTF-8
LC_COLLATE="en_US.UTF-8"
LC_CTYPE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_ALL=en_US.UTF-8